Effects of Boron Application on Agricultural and Quality Characteristics of Flaxseed

Project no. 32479 · Status: Kapanmış (Yayın bekleniyor) · 2024

Summary

<p>This&nbsp;study&nbsp;was&nbsp;conducted&nbsp;to&nbsp;investigate&nbsp;the&nbsp;effects&nbsp;of&nbsp;different&nbsp;boron&nbsp;doses&nbsp;and&nbsp;application&nbsp;timings&nbsp;on&nbsp;vegetative&nbsp;growth&nbsp;characteristics&nbsp;and&nbsp;photosynthetic&nbsp;pigment&nbsp;contents&nbsp;of&nbsp;camelina&nbsp;(Camelina&nbsp;sativa&nbsp;(L.)&nbsp;Crantz).&nbsp;Three&nbsp;genotypes&nbsp;were&nbsp;used:&nbsp;the&nbsp;registered&nbsp;Turkish&nbsp;cultivar&nbsp;Arslanbey&nbsp;and&nbsp;two&nbsp;accessions&nbsp;obtained&nbsp;from&nbsp;the&nbsp;USDA&nbsp;Gene&nbsp;Bank&nbsp;(PI-304269&nbsp;and&nbsp;PI-650142).&nbsp;The&nbsp;experiment&nbsp;was&nbsp;carried&nbsp;out&nbsp;as&nbsp;a&nbsp;pot&nbsp;trial&nbsp;under&nbsp;İzmir-Ödemiş&nbsp;ecological&nbsp;conditions,&nbsp;arranged&nbsp;in&nbsp;a&nbsp;randomized&nbsp;complete&nbsp;block&nbsp;design&nbsp;with&nbsp;6&nbsp;replications.&nbsp;Six&nbsp;boron&nbsp;application&nbsp;treatments&nbsp;(control,&nbsp;pre-flowering&nbsp;0.4%,&nbsp;capsule&nbsp;period&nbsp;0.4%,&nbsp;pre-flowering&nbsp;0.2%&nbsp;+&nbsp;capsule&nbsp;0.2%,&nbsp;pre-flowering&nbsp;0.4%&nbsp;+&nbsp;capsule&nbsp;0.4%,&nbsp;and&nbsp;high&nbsp;dose&nbsp;combination)&nbsp;were&nbsp;established.</p><p>Two-way&nbsp;ANOVA&nbsp;analyses&nbsp;revealed&nbsp;that&nbsp;boron&nbsp;application&nbsp;had&nbsp;statistically&nbsp;significant&nbsp;effects&nbsp;(p&lt;0.001)&nbsp;on&nbsp;all&nbsp;vegetative&nbsp;period&nbsp;parameters&nbsp;including&nbsp;plant&nbsp;height,&nbsp;leaf&nbsp;number,&nbsp;fresh&nbsp;and&nbsp;dry&nbsp;biomass,&nbsp;stem&nbsp;dry&nbsp;weight,&nbsp;chlorophyll&nbsp;a&nbsp;and&nbsp;b,&nbsp;carotenoids,&nbsp;and&nbsp;relative&nbsp;water&nbsp;content.&nbsp;Genotype&nbsp;effect&nbsp;was&nbsp;not&nbsp;significant&nbsp;for&nbsp;any&nbsp;parameter.&nbsp;High&nbsp;boron&nbsp;doses&nbsp;markedly&nbsp;suppressed&nbsp;plant&nbsp;growth&nbsp;(T5&nbsp;plant&nbsp;height:&nbsp;17.8&nbsp;cm&nbsp;vs.&nbsp;control:&nbsp;43.1&nbsp;cm),&nbsp;whereas&nbsp;moderate&nbsp;single-dose&nbsp;applications&nbsp;increased&nbsp;chlorophyll&nbsp;a&nbsp;and&nbsp;carotenoid&nbsp;values&nbsp;compared&nbsp;to&nbsp;control.&nbsp;The&nbsp;findings&nbsp;indicate&nbsp;that&nbsp;high&nbsp;boron&nbsp;doses&nbsp;may&nbsp;induce&nbsp;phytotoxicity&nbsp;in&nbsp;camelina&nbsp;cultivation,&nbsp;emphasizing&nbsp;the&nbsp;critical&nbsp;importance&nbsp;of&nbsp;dose&nbsp;optimization&nbsp;in&nbsp;boron&nbsp;management.</p>

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